[jwplayer] fixed controlbar doesn't fade out after mouseout with SMIL [Delivers #67439788]

[jwplayer] fixed controlbar doesn't fade out after mouseout with SMIL [Delivers #67439788]

1. setup with SMIL
2. do not roll over control bar

result: controlbar shows up and does not fade out (until rolling over and off of controlbar)

This small change fixes this issue.
I did that because it seems like when the SMIL buffers, the controls need to hide, in order for the fade to happen properly. I will try your suggestion though, thanks.